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Poll

How is your Schools class?

First Loco Good
38 (60.3%)
Minor problem
7 (11.1%)
Bad enough to return
8 (12.7%)
Second Loco Good
10 (15.9%)
(%)

Total Members Voted: 52

Author Topic: Dapol - 4-4-0 Schools class  (Read 63042 times)

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Online PLD

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Re: Dapol - 4-4-0 Schools class
« Reply #435 on: April 06, 2019, 10:57:23 PM »
[Devil's Advocate Mode]
I wonder if they've sorted out the 'soft' side motion rods that were so very bendy on the first batch...
I wonder if they've sorted out the heavy handed users that seemed so adept at mishandling the first batch and bending the rods...

Hopefully Dapol have redesigned the front bogie, which seems to be the root cause of problems with the previous models.
Hopefully Dapol haven't compromised the front bogie mounting design, which more closely resembled the prototype than most previous models...

[/Devil's Advocate Mode]

Offline Hailstone

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Re: Dapol - 4-4-0 Schools class
« Reply #436 on: April 06, 2019, 11:50:56 PM »
Hopefully Dapol have redesigned the front bogie, which seems to be the root cause of problems with the previous models.
no redesign required, the bogie pivot post  needs to be extended about 1mm to allow enough vertical clearance so that the bogie does not lift off the track if the leading driving wheels are raise 1mm of the track, this topped the derailments. I proved this soon after the Schools were released originally and posted my fix for this both here and on the Dapol digest.

hope this helps

Alex 

Offline longbow

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Re: Dapol - 4-4-0 Schools class
« Reply #437 on: April 06, 2019, 11:54:06 PM »
Perhaps Dapol will shop the new lot with a warning sticker and a pair of kid gloves.

Online PLD

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Re: Dapol - 4-4-0 Schools class
« Reply #438 on: April 06, 2019, 11:57:21 PM »
the bogie pivot post needs to be extended about 1mm to allow enough vertical clearance so that the bogie does not lift off the track if the leading driving wheels are raise 1mm of the track
Unless I'm really misunderstanding your meaning, there must be something seriously wrong in the tracklaying (e.g. very large steps or twists) for wheels to be lifter that far above the rail head...  :hmmm:

Online PLD

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Re: Dapol - 4-4-0 Schools class
« Reply #439 on: April 06, 2019, 11:58:40 PM »
Perhaps Dapol will shop the new lot with a warning sticker and a pair of kid gloves.
well probably better than the boxing gloves some modellers would seem to wear to handle their locos...  ;)

Offline Snowwolflair

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Re: Dapol - 4-4-0 Schools class
« Reply #440 on: April 07, 2019, 12:01:15 AM »
the bogie pivot post needs to be extended about 1mm to allow enough vertical clearance so that the bogie does not lift off the track if the leading driving wheels are raise 1mm of the track
Unless I'm really misunderstanding your meaning, there must be something seriously wrong in the tracklaying (e.g. very large steps or twists) for wheels to be lifter that far above the rail head...  :hmmm:

A lot of makes of points have edges and drops that really caught them out.

Offline Hailstone

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Re: Dapol - 4-4-0 Schools class
« Reply #441 on: April 07, 2019, 12:05:57 AM »
the bogie pivot post needs to be extended about 1mm to allow enough vertical clearance so that the bogie does not lift off the track if the leading driving wheels are raise 1mm of the track
Unless I'm really misunderstanding your meaning, there must be something seriously wrong in the tracklaying (e.g. very large steps or twists) for wheels to be lifter that far above the rail head...  :hmmm:

what about gradients?

regards,

Alex

Offline thebrighton

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Re: Dapol - 4-4-0 Schools class
« Reply #442 on: November 28, 2019, 02:56:10 PM »
Ok, I can normally dismantle a loco fairly easily but Dapol have stumped me with the Schools. Has anyone any suggestions as to how to remove the loco body? Cheers

Offline Dr Al

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Re: Dapol - 4-4-0 Schools class
« Reply #443 on: November 28, 2019, 04:57:09 PM »
Ok, I can normally dismantle a loco fairly easily but Dapol have stumped me with the Schools. Has anyone any suggestions as to how to remove the loco body? Cheers

If I remember correctly:

Remove tender (drawbar and tender conductor wire screws).

Remove front bogie (be careful it has a spring).

Under this there should be and attachment screw. The chassis should be able to then be winkled out - the cylinders are clipped to the footplate and need to come out with the chassis  (and will do once unclipped).

HTH,
Alan
Quote from: Roy L S
If Dr Al is online he may be able to provide a more comprehensive answer.

“We have also arranged things so that almost no one understands science and technology. This is a prescription for disaster. We might get away with it for a while, but sooner or later this combustible mixture of ignorance and power is going to blow up in our faces.” – Dr. Carl Sagan

Offline thebrighton

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Re: Dapol - 4-4-0 Schools class
« Reply #444 on: November 28, 2019, 08:44:06 PM »
That's as far as I got but it doesn't want to be 'winkled' out (great description  :D). I was wondering if it's one Dapol waved the glue at to hold it all together. I'll try out some more winkling.....
Cheers

Offline dannyboy

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Re: Dapol - 4-4-0 Schools class
« Reply #445 on: November 28, 2019, 09:31:53 PM »
If the winkling does not work, try picking.  ;)

(Sobering thought - I just looked up 'Winklepickers' on t'net. They are described as "Anarchic Fashion"  :o - come on now, it is only 50 years ago that I had a pair!  8)).
David.
I used to be indecisive - now I'm not - I don't think.
If a friend seems distant, catch up with him.

Offline Dr Al

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Re: Dapol - 4-4-0 Schools class
« Reply #446 on: November 28, 2019, 11:40:01 PM »
That's as far as I got but it doesn't want to be 'winkled' out (great description  :D). I was wondering if it's one Dapol waved the glue at to hold it all together. I'll try out some more winkling.....
Cheers

I do remember that the body didn't just lift off and it did take some persuasion to edge it out, but precise details of what I did I forget because the last one was some time ago - I've had many Schools to repair since then (valve gear) but none has needed to go that far in terms of dismantling. It isn't deliberately glued however, from what I recall, just tight.

It can be done, so persevere!

Cheers,
Alan
Quote from: Roy L S
If Dr Al is online he may be able to provide a more comprehensive answer.

“We have also arranged things so that almost no one understands science and technology. This is a prescription for disaster. We might get away with it for a while, but sooner or later this combustible mixture of ignorance and power is going to blow up in our faces.” – Dr. Carl Sagan

Offline thebrighton

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Re: Dapol - 4-4-0 Schools class
« Reply #447 on: November 29, 2019, 11:10:05 AM »
And sorted :)
It was to undertake a valve gear repair as I'd picked up 2 knackered ones for a bargain price. Both had suffered catastrophic damage to opposite sides so between them there was a complete set of intact valve gear. Unfortunately one had also suffered cylinder damage and who knows what had happened to the other as one of the drivers had been pulled of its stub axle and was wedged on top of the footplate! I guess someone had tried fixing it with a mallet.....
Anyhow I needed to remove the body as the 2 cylinder blocks needed to be cut in half with the intact ones with valve gear attached being retained. It went far better than I'd expected even though Shrewsbury in early logo black does currently have a green cylinder block one side.
The busted driver is now back in place so I now have a working chassis for an inside cylinder 4-4-0 as well for a future project.

Offline Dr Al

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Re: Dapol - 4-4-0 Schools class
« Reply #448 on: November 29, 2019, 11:37:58 AM »
You can get valve gear frets of all rods from DCC Supplies for 6 quid, so a lot can be repaired. These replacements seem to be of a thicker material also, so superior to the originals.

Cheers,
Alan
Quote from: Roy L S
If Dr Al is online he may be able to provide a more comprehensive answer.

“We have also arranged things so that almost no one understands science and technology. This is a prescription for disaster. We might get away with it for a while, but sooner or later this combustible mixture of ignorance and power is going to blow up in our faces.” – Dr. Carl Sagan

 

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